Brake-rigging for trailer-trucks.



F. E. SCHWENTLER. BRAKE RlGGlNG FoR TRAILER TRUCKS.

APPLICATION FILED DEC. 24, i914.

i oFFioE.

FRANCIS E. SCHWENTLER, LOUIS, MISSOURI, jASSIG-NOB. T0 THE AMERICAN BRAKE COMPANY, Q'JFST.y LQUIS, MISSOURI, A.l CORPORATION OF MISSOURI.

y gmxnnieemoron martina-Teunis. 1

ToaZlwwi/riitmayconcerm'l i w Be it'- known that" I, limitarsil E. SGHWENTLER, a citizen oi the United States,. and a resident of St. Louis, in the `Stateo Missouri,'have invented ay certain new andI useful Improvement in Brake-Riggingl for' Trailer-Trucks, of which This invention relates to `bralize-'rigging for locomotives having radial trailer trucks, and has for its object to provide a selfcontained clasp type ofbrake for the trailer truck wheels, and operated by anindependent brake cylinder mounted en the trailer truck, whereby the full equalized'pressure for the brakes on the trailer truck may ,bereadily obtained at all times without the use of mechanical' connections with the equalized` system 4of driver brakes. The construction is thus 'very muchV simplified,

' and may be readily applied to the various r designs. of. trailer' truck locomotives withl out interfering with themembers of the engine frame;V i

In the accompanying drawings: Figure 1 is a'plan of a brake design embodying my improvement as applied tothe radial trailer truck of a locomotive, the main .and trailer truck frames being indicated`- dotted lines; and Fig. 2, a side elevation;of,l

the same.v r

According to the construction-shownifin the drawings, my improvement? islillustrated in connection with-the usual form of tov trailer truck locomotive having alinain'" frame', 1, with` driving whee'ls,`2, afradial trailer truck frame, 4i, pivoted at 5 to the main frame and carrying journall boxes for-l e ythe trailer-truck wheels, 3. The usual form of equalized driver brake system may be4 employed for applying the brakes. tothe. driving wheels.

For eetueeing the brakes a the trailer] truck, brakeheads and Shoes, S3- and S,

are applied to both sides ofthe trailing wheels, being pivotally supported on thel respective jaw hanger levers, 19 and 20,1 pivoted on suitable brackets carried by thetrailer' truck frame. The lower vends of the hangers are pivotally connected to .the reef spective short levers, 1'( and 21'` which are improvementthe following is a specification.

connected together bi" pull rods,- 12:3, upon both sides of thejtrai er truck.-

Sp'ecication of Letters Patenti vtPaltiBntiBd Slept. 112, 19103.. v i I Yoriginel application ined Neveiiiber ii, 1914,serie1ne-s71a7. Divided and this epplieetien inea December f 24., i914. serial No. 878,969.

The brake cylinder, C, 'ismounted on the end cross member ofthe trailer truck frame vand actuates the equalizer', 10a, connected at itsopposite ends by means of ull rods, 16, `with the ends oone pair of the equalizer truck levers, 21, the otherlpair of truck levers, 17, being attached at their inner ends to fixed fulcru'ms ,by means of rods, 9. In

this instance the pull rods;\18, are attached f to the outer ends of levers, 17 and 21, and are located outsidev of the trailing'wheels.

This construction comprises a' selfcontained clasp brake arrangement for the trailer` truck.. wheels and operated by an additioalbrake cylinder separate from the. .l usual brake cylinder of the eqalized driver v brake rigging, and mounted lon the trailer truck frame. In this way all complicated `mechanical connections between the bra-ke levers of the driver brake. system and those 'of the trailer truck are dispensedwith, and

the design may be readilyjapplied to any of the various forms-of trailer truck locomotives` Having now? `described my -ewith trailer 'trucks, the' combination with- This application isa div-isionvof my prior application 'Serial Nog' 871,437, filed 'N o- `vember 11,1914. v v A' r sog inver'ition, what'I claim as new desire to .secure by .the trailer "truck ',frame," of brake shoes apl .plied 'to both sides of the trailer' truck wheels, twos ets of equalizer truck levers and pull rods, one 'on'each'si'de ofthe truck.. below. the truck frame, foractuating said' brake shoes, the pull rods being outside" thej I truck wheels, -a cross lequalizer having pull rod connections with vone pair' of truck levers, the otherpair ,of truck levers havi, .ing' fixed v-lulcrums, and an independent brake-cylindermounted onthe trailer truck. i frame ytor actuating said cross equalizer.

.2. In a' fbrake rig `ng forloc'omotives 'with' `trailer trucks, th -the trailer .truck frame,iofvbrake shoes .apf'f so i plied to .both sides ofthe trailer struck" and pull rods, one on each side of the truck below the truck frame, for actuating` said brake shoes, the pull rods being outside the truck Wheels, a cross equalizer connected 5 with the rear pair .of truck 1evers, the foI-,

ward truck levers having fixed fulcrums and an i dependent brake cylinder mounted on the end-cross member of the trailer truck frame for actuating said cross equalizer.

l FRANCIS E.;SCHWENTLER. ,Witnessesz I F. G. GUILFAYL,

0'1'10 J. PAPKE. 

